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<title>Data-File format: Plot definition</title>
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    <a href="SP_0_Main.htm"><img src="images/abacus.gif" border="0" width="32" height="32" alt="Calc." title="Calc."></a>&nbsp;</td>
    <td align="left" valign="middle"><font size="-1"><a href="SP_0_Main.htm">SED &amp; PREDOM</a>&nbsp;/ <nobr><a href="SP_Data_File_Format.htm">Input data-file format</a></nobr></font></td>
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<h3>Data file structure:  Plot definition</h3>

<p>Input files consist of: <nobr><b>1)</b></nobr> definition of the
<a href="SP_Data_File_Chemical_System.htm">chemical <nobr>system</a>;</nobr>
<nobr><b>2)</b></nobr> plot information; and <nobr><b>3)</b></nobr>
<a href="SP_Data_File_Concs.htm">concentrations</a> (ranges)
for the chemical components.</p>

<p>The <b>plot definition</b> differs between <a href="SP_SED.htm">SED</a> and
<nobr><a href="SP_PREDOM.htm">PREDOM</a>:</nobr></p>

<p><i>Data to be entered for <nobr></i>SED:</i></nobr></p>
<p class="indent"><nobr>YCOMP, [Ymin, Ymax,] [EH,] XCOMP,</nobr></p>

<p><i>Data to be entered for </i>PREDOM:</p>
<p class="indent">
<nobr>[EH,] [ONE AREA, NAME,]</nobr><br>
<nobr>YCOMP, XCOMP, MCOMP,</nobr>
</p>
<p>where data within [] are optional. A complete explanation is available for
<a href="SP_SED_Input_File_Format.htm">SED</a> and
<nobr><a href="SP_PREDOM_Input_File_Format.htm">PREDOM</a>.</nobr></p>

<p>A list of possible diagram types may be obtained from SED or PREDOM by
entering a <nobr>&#147;?&#148;</nobr> in the plot-definition input line, and
running the program (this will make SED or PREDOM complain that
<nobr>&#147;?&#148;</nobr> is not an acceptable
diagram type, and the program will print a list of valid
choices for the plot definition).</p>

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